Improvement in the processes of coloring photographs



UNITED STATES PATENT OFFICE.

DEN CHAMBERLAIN, OF WINONA, MINNESOTA.

IMPROVEMENT lN THE PROCE SSES OF COLORING PHOTOGRAPHS.

Specification forming part of Letters Patent No. 194,579, dated August 28, 1877 application filed May 12, 1877.

To all whom tt may concern Be it known that I, DEN CHAMBERLAIN, of

' Winona, in the county of Winona and State of Minnesota, have invented a new and Improved Process for Coloring Photographs, of which the following is a specification:

My invention relates to an improved process for coloring photographs, by which the pictures are given a mellow tone and. a life-like color without impairing the likeness.

ln carrying out my invention I take the photograph to be colored and paste it upon a piece of white cloth which has been previously stretched, and when dry I apply to the back of the cloth a mixture of alcohol and castor-oil, or any oily substance, and heat the mounted picture until the alcohol is evaporated, and the picture is left translucent. I

I then apply to the back of the cloth such the back, said steps being taken. in the order substantially as specified.

' DEN CHAMBERLAIN.

Witnesses:

SAD) HAYES,

F. B. DYOKSON. 

